<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="loginCheckServlet" target="_blank">
  <h1>用户登录</h1>
    用户名:<input type="text" name="username"><br>
    密  码:<input type="password" name="pwd"><br>
    <input type="submit" value="提交">
</form>
</body>
</html>